The board will determine if there was basis for the COs decision and would determine if you get retained, an Honorable, General, OTH, or some other category for having fewer than 6 mo of service.
Yeah, in this case, I think they would probably just give you an entry-level separation. I suppose there'd be no reason why they couldn't give you some other discharge classification, but from what I understood from those who DOR'd or were NPQ'd from the Naval Service all together or some other reason why they couldn't complete training, they were just ELS'd. I don't think it would be any different in this case, even though the servicemember would be separated for an infraction like pissing dirty.